Controller and vehicle

Abstract

The utility model relates to the technical field of vehicle production and manufacturing, in particular to a controller and a vehicle. The wiring layer of the shielding area is used for wiring of an integrated circuit to be connected with a low-voltage control unit, the shielding layer of the shielding area is a metal layer used for electromagnetic isolation, and the insulating layer of the shielding area is used for covering the shielding layer and insulating the shielding layer. The shielding layer of the shielding area is arranged on at least one side of the wiring layer, at least part of the shielding layer is exposed out of the side face, away from the wiring layer, of the insulating layer to form an isolation part, and the isolation rib and / or the isolation cover abut against the isolation part, so that the low-voltage control unit can be isolated, and the electromagnetic isolation performance of the controller is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of production and manufacture of vehicles, and particularly relates to a controller and a vehicle. BACKGROUND

[0002] The existing controller has the problems of insufficient isolation and loopholes in EMC isolation due to the structure and assembly of the controller cover and the characteristics of the system, resulting in poor EMC performance of the controller. SUMMARY

[0003] The present application provides a controller and a vehicle.

[0004] The present application provides a controller, which comprises a circuit board, the circuit board comprises a low-voltage control unit and a shielding area, the shielding area is arranged on the radial outer side of the low-voltage control unit, the shielding area comprises a wiring layer, a shielding layer and an insulating layer, the shielding layer is arranged on at least one side of the wiring layer, the insulating layer is arranged on the side of the shielding layer away from the wiring layer, at least part of the shielding layer extends from the wiring layer to the insulating layer, and at least part of the shielding layer is exposed on the side of the insulating layer away from the wiring layer to form an isolation part; the controller further comprises a shell and an isolation cover, the shell forms an isolation rib, and at least one of the isolation rib and the isolation cover is in abutment with the isolation part to isolate the low-voltage control unit.

[0005] In an exemplary embodiment of the present application, the number of layers of the wiring layer is at least one, the number of layers of the shielding layer is two, and the number of layers of the insulating layer is two, two shielding layers are arranged on both sides of the wiring layer, and two insulating layers are arranged on the side of the insulating layer away from the wiring layer, respectively.

[0006] In an exemplary embodiment of the present application, the shielding layer comprises a first shielding layer and a second shielding layer, the isolation part comprises a first isolation part and a second isolation part, part of the first shielding layer is exposed on the side of the insulating layer away from the wiring layer to form the first isolation part, part of the second shielding layer is exposed on the side of the insulating layer away from the wiring layer to form the second isolation part, the projection of the first isolation part on the shell does not coincide with the projection of the second isolation part on the shell, or the projection of the first isolation part on the shell coincides with the projection of the second isolation part on the shell; the isolation rib is in abutment with the first isolation part, and the isolation cover is in abutment with the second isolation part.

[0007] In an example embodiment of the present application, the isolation ribs are protrudingly arranged on the shell to form a first isolation cavity; the isolation cover forms a second isolation cavity; the low-voltage control unit comprises a first control part and a second control part, the first control part protrudes from the circuit board to the shell, the second control part protrudes from the circuit board to the isolation cover, the first control part is arranged in the first isolation cavity, and the second control part is arranged in the second isolation cavity.

[0008] In an example embodiment of the present application, the shell forms a hole communicating with the first isolation cavity, and the hole can allow an external connector to pass through and be electrically connected with the first control part.

[0009] In an example embodiment of the present application, the shell forms a receiving groove, the controller comprises an IGBT module arranged in the receiving groove, the IGBT module is arranged on the side of the circuit board facing the shell, and the IGBT module is electrically connected with the circuit board.

[0010] In an example embodiment of the present application, the receiving groove has a groove wall, the shell comprises a connecting part arranged on the radial outer side of the groove wall, and the controller further comprises a spring plate connected with the connecting part, the spring plate extends to the IGBT module, and the spring plate presses the IGBT module against the groove wall.

[0011] In an example embodiment of the present application, the controller further comprises an upper cover, the circuit board is arranged between the upper cover and the shell, and the isolation cover is located on the side of the circuit board facing the upper cover.

[0012] In an example embodiment of the present application, the controller further comprises a sealing part arranged between the upper cover and the shell.

[0013] The present application also provides a vehicle comprising the controller.

[0014] The controller and the vehicle according to the present application have the following beneficial effects: the wiring layer of the shielding area is used for integrated circuit wiring to connect the low-voltage control unit, the shielding layer of the shielding area is a metal layer used for electromagnetic isolation, and the insulating layer of the shielding area is used to cover the shielding layer and insulate the shielding layer. The shielding layer of the shielding area is arranged on at least one side of the wiring layer, and at least part of the shielding layer is exposed on the side of the insulating layer away from the wiring layer to form an isolation part. By abutting the isolation ribs and / or the isolation cover against the isolation part, the low-voltage control unit can be isolated, and the electromagnetic isolation performance of the controller is improved.

[0015] Other features and advantages of the present application will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the application.

[0016] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. It is apparent that the drawing in the following description is only some embodiments of the present application, and other drawings can be obtained by those of ordinary skill in the art without creative labor on the basis of these drawings.

[0018] Figure 1 is an exploded schematic view of a controller in the present embodiment;

[0019] Figure 2 is a front view schematic of the assembly of the isolator cover circuit board in the present embodiment;

[0020] Figure 3 is a front view schematic of the assembly of the isolator cover circuit board in the present embodiment; Figure 2 is a cross-sectional view of A-A in

[0021] Figure 4 is a front view schematic of the assembly of the isolator cover circuit board in the present embodiment; Figure 3 is an enlarged schematic view of part of the structure in

[0022] Figure 5 is a front view schematic of the assembly of the isolator cover circuit board in the present embodiment;

[0023] Figure 6 is a front view schematic of the assembly of the isolator cover circuit board in the present embodiment;

[0024] Figure 7 is a front view schematic of the assembly of the isolator cover circuit board in the present embodiment; Figure 2 is a cross-sectional view of A-A in

[0025] Figure 8 is a front view schematic of the assembly of the isolator cover circuit board in the present embodiment.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 10, circuit board; 11, low-voltage control unit; 111, first control part; 112, second control part; 12, shielding area; 121, wiring layer; 122, shielding layer; 1221, first shielding layer; 1222, second shielding layer; 123, insulating layer; 124, isolation part; 1241, first isolation part; 1242, second isolation part; 20, shell; 21, isolation rib; 22, first isolation cavity; 23, hole part; 24, accommodating groove; 241, groove wall; 25, connecting part; 30, isolation cover; 31, second isolation cavity; 40, IGBT module; 50, elastic sheet; 60, upper cover; 70, sealing part. DETAILED DESCRIPTION

[0028] Example implementations are now described with reference to the drawings; however, these descriptions are not intended to limit the scope of the application, but are intended to provide examples of implementations of the application as described herein. As such, descriptions of example implementations are intended to be read in conjunction with the drawings, which are described below.

[0029] Furthermore, described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, devices, implementations, and operations have not been shown or described in detail to avoid obscuring aspects of the application.

[0030] The application is further described below with reference to the drawings and specific examples. It is noted that the technical features involved in each of the embodiments of the application described below can be combined with each other as long as there is no conflict. The embodiments described below with reference to the drawings are exemplary and are intended to explain the application, but cannot be understood as limiting the application.

[0031] It should be noted that "multiple" mentioned herein refers to two or more. The association relationship of "and / or" describes the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0032] The existing controller has many insufficient isolation and vulnerability phenomena in EMC isolation due to the characteristics of the system, the structure and assembly limitations of the controller upper cover itself, and the poor EMC performance of the controller.

[0033] To solve the above technical problems, with reference toFigures 1 to 4 As shown, the present application provides a controller, the controller comprising a circuit board 10, the circuit board 10 comprising a low-voltage control unit 11 and a shielding area 12, the shielding area 12 being arranged radially outward of the low-voltage control unit 11, the shielding area 12 comprising a wiring layer 121, a shielding layer 122 and an insulating layer 123, the shielding layer 122 being arranged on at least one side of the wiring layer 121, the insulating layer 123 being arranged on a side of the shielding layer 122 facing away from the wiring layer 121, at least part of the shielding layer 122 extending from the wiring layer 121 to the insulating layer 123, and at least part of the shielding layer 122 being exposed on a side of the insulating layer 123 facing away from the wiring layer 121 to form an isolation portion 124; the controller further comprising a housing 20 and a shielding cover 30, the housing 20 forming an isolation rib 21, at least one of the isolation rib 21 and the shielding cover 30 abutting against the isolation portion 124 to isolate the low-voltage control unit 11. Thus, the wiring layer 121 of the shielding area 12 is used for integrated circuit wiring to connect the low-voltage control unit 11, the shielding layer 122 of the shielding area 12 is a metal layer used for electromagnetic isolation, and the insulating layer 123 of the shielding area 12 is used to cover the shielding layer 122 to insulate the shielding layer 122. The shielding layer 122 of the shielding area 12 is arranged on at least one side of the wiring layer 121, and at least part of the shielding layer 122 is exposed on a side of the insulating layer 123 facing away from the wiring layer 121 to form an isolation portion 124. By abutting the isolation rib 21 and / or the shielding cover 30 against the isolation portion 124, the low-voltage control unit 11 can be isolated, and the electromagnetic isolation performance of the controller is increased.

[0034] In some embodiments, the shielding layer 122 can be arranged on either side of the wiring layer 121 to shield either side; the shielding layer 122 can be arranged on both sides of the wiring layer 121 to shield both sides of the wiring layer 121.

[0035] In some embodiments, when the shielding layer 122 is arranged on either side of the wiring layer 121, the shielding layer 122 can be abutted by the housing 20 or the shielding cover 30; when the shielding layer 122 can be arranged on both sides of the wiring layer 121, the shielding cover 30 can be arranged on one side to abut against the shielding layer 122, and the isolation rib 21 can be arranged on the other side to abut against the shielding layer 122. Specifically, the number of layers of the wiring layer 121 is at least one, the number of layers of the shielding layer 122 is two, the number of layers of the insulating layer 123 is two, the two shielding layers 122 are arranged on both sides of the wiring layer 121, and the two insulating layers 123 are arranged on a side of the insulating layer 123 facing away from the wiring layer 121. Thus, both sides of the wiring layer 121 have an isolation effect, and the electromagnetic isolation performance is increased.

[0036] In some embodiments, the number of layers of the wiring layer can be 1, 2, 4, 6, etc., which can be selected according to actual needs. In some embodiments, referring to Figure 1As shown, the shell 20 forms a containing groove 24, the controller includes an IGBT module 40, the IGBT module 40 is arranged in the containing groove 24, the IGBT module 40 is arranged on the side of the circuit board 10 facing the shell 20, and the IGBT module 40 is electrically connected with the circuit board 10. The IGBT module 40 is used for converting electrical signals, and the circuit board 10 can control the IGBT module 40.

[0037] In some embodiments, referring to Figure 1 As shown, the containing groove 24 has a groove wall 241; the shell 20 includes a connecting part 25 arranged on the radial outer side of the groove wall 241, and the controller further includes an elastic sheet 50 connected with the connecting part 25, the elastic sheet 50 extends to the IGBT module 40, and the elastic sheet 50 presses the IGBT module 40 on the groove wall 241. Such a design can facilitate the installation of the elastic sheet 50 on the shell 20 through the elastic sheet 50, and the elastic sheet 50 can play a shock-absorbing role on the IGBT module 40, reducing damage to the IGBT module 40 caused by shaking during vehicle driving.

[0038] In some embodiments, referring to Figure 1 As shown, the controller further includes an upper cover 60, the circuit board 10 is arranged between the upper cover 60 and the shell 20, and the isolation cover 30 is located on the side of the circuit board 10 facing the upper cover 60. The upper cover 60 forms a containing cavity with the shell 20, and the upper cover 60 also forms a containing groove corresponding to the shell 20, but the depth of the containing groove of the upper cover 60 is less than the depth of the containing groove of the shell 20. The isolation cover 30 is located between the circuit board 10 and the upper cover 60, and the upper cover 60 protects the isolation cover 30 and the circuit board 10.

[0039] In some embodiments, referring to Figure 1 As shown, the controller further includes a heat-conducting sheet, which is a ceramic heat-conducting sheet, used for conducting heat from the IGBT module 40 to the shell 20, and the heat-conducting sheet is arranged between the IGBT module 40 and the shell 20. During installation, the IGBT module 40 is placed on the heat-conducting sheet through a positioning tool, the elastic sheet 50 is assembled outside the containing groove 24, and fastening screws are used to fasten the elastic sheet 50 on the connecting part 25. During the fastening process, the elastic sheet 50 will be deformed to fix the IGBT module 40 and the heat-conducting sheet in the containing groove 24 of the controller shell 20. Then the circuit board 10 is assembled to the controller shell 20, fastening screws are used to fasten the circuit board 10, and then the shielding cover is placed on the circuit board 10 and fastened using fastening screws. The fastening screws will simultaneously fasten the shielding cover and the circuit board 10 on the isolation ribs 21 of the shell 20.

[0040] In some embodiments, referring to Figure 1As shown, the controller further comprises a sealing portion 70 arranged between the upper cover 60 and the housing 20. The sealing portion 70 is formed by curing of the sealant. During installation, the sealant is pre-applied on the periphery of the housing 20 by the device, and then the upper cover 60 is installed on the housing 20 and fastened by using fastening screws. During the fastening process, the sealant flows in the gap between the upper cover 60 and the housing 20, ensuring that the sealant can fill every gap, and after curing, the sealing portion 70 is formed to play a sealing role.

[0041] In some embodiments, the upper cover 60 is formed by sheet metal stamping process of steel plate or aluminum plate. The sealing portion 70 as a sealing medium can reduce the bending deformation of the upper cover 60 and improve the sealing effect. At the same time, the sealing portion 70 has certain adhesion, so that the upper cover 60 and the housing 20 are adhered to each other, and a small amount of screws can meet the assembly and fastening effect.

[0042] In some embodiments, referring to Figure 4 As shown, the shielding layer 122 comprises a first shielding layer 1221 and a second shielding layer 1222. In combination with Figure 5 and Figure 6 As shown, the isolation portion 124 comprises a first isolation portion 1241 and a second isolation portion 1242. Part of the first shielding layer 1221 is exposed on the side of the insulating layer 123 away from the wiring layer 121 to form the first isolation portion 1241, and part of the second shielding layer 1222 is exposed on the side of the insulating layer 123 away from the wiring layer 121 to form the second isolation portion 1242. The projection of the first isolation portion 1241 on the housing 20 does not coincide with the projection of the second isolation portion 1242 on the housing 20. The isolation rib 21 abuts against the first isolation portion 1241, and the isolation cover 30 abuts against the second isolation portion 1242. The projection of the first isolation portion 1241 on the housing 20 does not coincide with the projection of the second isolation portion 1242 on the housing 20, or coincide with the projection of the second isolation portion 1242 on the housing 20, which is set according to actual needs. When the projection of the first isolation portion 1241 on the housing 20 does not coincide with the projection of the second isolation portion 1242 on the housing 20, that is, the first isolation portion 1241 and the isolation portion 124 are staggered in the vertical direction, so as to prevent the size of the housing 20 and / or the isolation cover 30 from being limited due to assembly limitation, resulting in insufficient isolation. Therefore, such design can increase the isolation effect.

[0043] In some embodiments, referring to Figure 7As shown, the isolation rib 21 is protrudingly arranged on the shell 20 to form a first isolation cavity 22; the isolation cover 30 forms a second isolation cavity 31; the low-voltage control unit 11 comprises a first control part 111 and a second control part 112, the first control part 111 is protrudingly arranged on the circuit board 10 towards the shell 20, the second control part 112 is protrudingly arranged on the circuit board 10 towards the isolation cover 30, the first control part 111 is arranged in the first isolation cavity 22, and the second control part 112 is arranged in the second isolation cavity 31. The first control part 111 and the second control part 112 can comprise electronic elements such as pins, capacitors, resistors, etc., which are specifically selected according to actual conditions, at least part of the electronic elements are protrudingly arranged on the circuit board 10 towards the isolation cover 30, and at least part of the electronic elements are protrudingly arranged on the circuit board 10 towards the shell 20, so that the first isolation cavity 22 formed can accommodate the first control part 111, the second isolation cavity 31 formed can accommodate the second control part 112, and a better isolation effect is further achieved.

[0044] In some embodiments, referring to Figure 7 and 8 As shown, the shell 20 forms a hole part 23, the hole part 23 communicates with the first isolation cavity 22, and the hole part 23 can enable an external connector to pass through and be electrically connected with the first control part 111. The hole part 23 is matched with the connector, and the first control part 111 is connected through the connector. Thus, low-voltage signals between the low-voltage control unit 11 and an external host can be transmitted to control the controller.

[0045] The application also provides a vehicle comprising the above controller.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms such as "arranged", "connected" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the description of the present application, the description of the terms "some embodiments" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments are contained in at least one embodiment of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0048] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are merely exemplary, and are not to be understood as limiting the present application, and any changes, modifications, replacements and variations of the above embodiments made by those skilled in the art within the scope of the present application should be included in the scope of the present application.

Claims

1. A controller, characterized in that, The controller includes a circuit board, which includes a low-voltage control unit and a shielding area. The shielding area is located radially outside the low-voltage control unit. The shielding area includes a wiring layer, a shielding layer, and an insulating layer. The shielding layer is located on at least one side of the wiring layer, and the insulating layer is located on the side of the shielding layer opposite to the wiring layer. At least a portion of the shielding layer extends from the wiring layer toward the insulating layer, and at least a portion of the shielding layer is exposed on the side of the insulating layer opposite to the wiring layer to form an isolation portion. The controller further includes a housing and an isolation shield, the housing forming an isolation rib, at least one of the isolation rib and the isolation shield abutting against the isolation portion to isolate the low-pressure control unit.

2. The controller according to claim 1, characterized in that, The number of the wiring layer is at least one, the number of the shielding layer is two, the number of the insulating layer is two, the two shielding layers are disposed on both sides of the wiring layer, and the two insulating layers are respectively disposed on the side of the insulating layer away from the wiring layer.

3. The controller according to claim 2, characterized in that, The shielding layer includes a first shielding layer and a second shielding layer, and the isolation portion includes a first isolation portion and a second isolation portion. A portion of the first shielding layer is exposed on the side of the insulating layer away from the wiring layer to form the first isolation portion, and a portion of the second shielding layer is exposed on the side of the insulating layer away from the wiring layer to form the second isolation portion. The projection of the first isolation portion on the housing and the projection of the second isolation portion on the housing do not coincide, or the projection of the first isolation portion on the housing and the projection of the second isolation portion on the housing coincide. The isolation rib abuts against the first isolation part, and the isolation cover abuts against the second isolation part.

4. The controller according to claim 3, characterized in that, The isolation rib protrudes from the shell to form a first isolation cavity; The isolation cover forms a second isolation cavity; The low-voltage control unit includes a first control unit and a second control unit. The first control unit protrudes from the circuit board toward the housing, and the second control unit protrudes from the circuit board toward the isolation cover. The first control unit is located in the first isolation cavity, and the second control unit is located in the second isolation cavity.

5. The controller according to claim 4, characterized in that, The housing forms a hole that connects to the first isolation cavity, and the hole allows an external connector to pass through and electrically connect to the first control unit.

6. The controller according to claim 1, characterized in that, The housing forms a receiving groove, and the controller includes an IGBT module. The IGBT module is disposed in the receiving groove and on the side of the circuit board facing the housing. The IGBT module is electrically connected to the circuit board.

7. The controller according to claim 6, characterized in that, The receiving groove has a groove wall; The housing includes a connecting portion, which is located on the radially outer side of the groove wall; The controller also includes a spring contact, which is connected to the connecting part and extends to the IGBT module. The spring contact presses against the IGBT module on the slot wall.

8. The controller according to claim 1, characterized in that, The controller also includes a top cover, the circuit board is disposed between the top cover and the housing, and the isolation cover is located on the side of the circuit board facing the top cover.

9. The controller according to claim 8, characterized in that, The controller also includes a sealing part disposed between the upper cover and the housing.

10. A vehicle, characterized in that, Includes the controller as described in any one of claims 1 to 9.

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